[AntiAliasing]

3dfx Voodoo2 chip-set has ability of rendering with AntiAliasing that makes the edges smoother (less jaggies) and gives a higher image quality. Voodoo2 can only do Edge AntiAliasing: this means that aliasing-effects, that are not situated at the border of a polygon, are left untouched. Since Voodoo2 stores its rendered pixels immediately in external Ram while the antialiasing is done when the whole image is already rendered, the hardware has to read several pixels out of the external memory, to use some sort of filtering on them and store them again in external ram. So AA involves read, modify and write operations. Because accessing to external memory reduces memory bandwidth and steals it to the other rendering actions a drop in the number of fps occurs. Remember that less fill rate is less fps.


>> You can enable experimental AntiAliasing support with a double click on the files "glide_aa_on".

>> You can disable experimental AntiAliasing support with a double click on the files "glide_aa_off". 

All these files are located in \Tools\AntiAliasing\GLide directory of FastVoodoo2 4.0 XP Gold Edition package.



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